Storage is gone after joining cluster

[a13519]

I have 2 HDD drive on my node 2, after joining the cluster on node 1, one of my node 2 drive is gone, I try to mount it but failed, there are some VM backup data in it, how can I recover them back?

the sda is the drive I want to add to my storage.

root@pve2:~# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 894.3G 0 disk ├─pve2_thinpool-pve2_thinpool_tmeta 253:0 0 112M 0 lvm │ └─pve2_thinpool-pve2_thinpool-tpool 253:6 0 894G 0 lvm │ ├─pve2_thinpool-pve2_thinpool 253:7 0 894G 1 lvm │ └─pve2_thinpool-vm--106--disk--1 253:8 0 32G 0 lvm └─pve2_thinpool-pve2_thinpool_tdata 253:1 0 894G 0 lvm └─pve2_thinpool-pve2_thinpool-tpool 253:6 0 894G 0 lvm ├─pve2_thinpool-pve2_thinpool 253:7 0 894G 1 lvm └─pve2_thinpool-vm--106--disk--1 253:8 0 32G 0 lvm sdb 8:16 0 119.2G 0 disk ├─sdb1 8:17 0 1007K 0 part ├─sdb2 8:18 0 512M 0 part /boot/efi └─sdb3 8:19 0 118.7G 0 part ├─pve-swap 253:2 0 8G 0 lvm [SWAP] ├─pve-root 253:3 0 29.5G 0 lvm / ├─pve-data_tmeta 253:4 0 1G 0 lvm │ └─pve-data 253:9 0 64.5G 0 lvm └─pve-data_tdata 253:5 0 64.5G 0 lvm └─pve-data 253:9 0 64.5G 0 lvm

 

[bbgeek17]

A node that is about to be added to the cluster cannot hold any guests. All existing configuration in /etc/pve is overwritten when joining a cluster, since guest IDs could otherwise conflict. As a workaround, you can create a backup of the guest (vzdump) and restore it under a different ID, after the node has been added to the cluster.

https://pve.proxmox.com/wiki/Cluster_Manager#pvecm_join_node_to_cluster

https://forum.proxmox.com/threads/after-joining-a-cluster-internal-storage-is-lost.101702/

Storage configuration is also stored in /etc/pve so it also gets overwritten. The data itself is most likely still there.
Do you have a backup of your /etc/pve from joined node? What is the context of /etc/pve/storage.cfg now? What command are you running that fails? What is the error message? What is the output of lvs and vgs on each node?

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